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Schroder relation

Among oxo-metals, osmium tetroxide is a particularly intriguing oxidant since it is known to oxidize various types of alkenes rapidly, but it nonetheless eschews the electron-rich aromatic hydrocarbons like benzene and naphthalene (Criegee et al., 1942 Schroder, 1980). Such selectivities do not obviously derive from differences in the donor properties of the hydrocarbons since the oxidation (ionization) potentials of arenes are actually less than those of alkenes. The similarity in the electronic interactions of arenes and alkenes towards osmium tetroxide relates to the series of electron donor-acceptor (EDA) complexes formed with both types of hydrocarbons (26). Common to both arenes and alkenes is the immediate appearance of similar colours that are diagnostic of charge-transfer absorp-... [Pg.219]

Thomsen BJ, Schroder H, Kristinsson J et al. Possible carcinogenic effect of 6-mercaptopurine on bone marrow stem cells relation to thiopurine metabolism. Cancer 1999 86 1080-1086. [Pg.201]

Since these original reports, a variety of different routes have been used to prepare these ions171-174. A related 1,4-bishomotropenylium ion, 73, was prepared independently by Roberts, Hamberger and Winstein175 and Schroder and colleagues176. [Pg.440]

Schroder, J., and Schroder, G., 1990, Stilbene and chalcone synthases related enzymes with key functions in plant-specific pathways, Z Naturforsch. 45 1-8. [Pg.146]

Eckermanna C, Schroder G, Eckermann S, Strack D, Schmidt J, Schneider B, Schroder J (2003) Stilbenecarboxylate biosynthesis a new function in the family of chalcone synthase-related proteins. Phytochemistry 62 271-286... [Pg.65]

Schingoethe, D.J., Parsons, J.G., Ludens, F.C., Schaffer, L.V., Shave, H.J. (1979). Response of lactating cows to 300 mg of supplemental vitamin E daily. J. Dairy Sci. 62, 333-338. Schroder, M.J.A. 1982. Effect of oxygen on the keeping quality of milk. I. Oxidized flavor development and oxygen uptake in milk in relation to oxygen availability. J. Dairy Res. 49, 407 124. [Pg.597]

Burghaus L, Schutz U, Krempel U, Lindstrom J, Schroder H (2003) Loss of nicotinic acetylcholine receptor subunits alpha4 and alpha7 in the cerebral cortex of Parkinson patients. Parkinsonism Relat Disord 9 243-246... [Pg.772]

Zachariae H, Schroder H, Foged E, Sogaard H. Methotrexate hepatotoxicity and concentrations of methotrexate and folate in erythrocytes—relation to hver fibrosis and cirrhosis. Acta Dermatol Venereol 1987 67(4) 336-40. [Pg.2287]

Figure 7.01. Test of Barton-Nakajima relation for 40 different alkali ion conducting oxide glasses, (after Dyre and Schroder, 2000)... Figure 7.01. Test of Barton-Nakajima relation for 40 different alkali ion conducting oxide glasses, (after Dyre and Schroder, 2000)...
Schultz H, Lehmann H, Rein M, Hanack M (1991) Phthalocyaninatometal and Related Complexes with Special Electrical and Optical Properties. 74 41-146 Schutte CJH (1971) The Ab-Initio Calculation of Molecular Vibrational Frequencies and Force Constants. 9 213-263 Schwarz H, see Schroder D (2000) 97 91-124... [Pg.298]

Schroder and co-workers have successfully isolated a unique poly-catenated undulating molecular ladder that forms interwoven two-dimensional sheets (252). The reaction of [Cu(MeCN)4]PF6 with 1,4-bis(4-pyridyl)butadiyne (L93) in MeCN-CH2Cl2 yielded the complex [Cu2(MeCN)2(L93)3](PF6)2. The compound exists as a network of molecular ladders in which the two independent Cu1 centers are each coordinated in a tetrahedral geometry to three L93 groups and one MeCN molecule. The lattices are polycatenated to give a remarkable two-dimensional layer structure (Fig. 77). The sheets of interwoven molecules are separated by PF3 counteranions and solvent molecules. The structure is further stabilized by the tt—tt interactions between adjacent, symmetry-related ladders. [Pg.272]

Synthesis of melittin and related peptides Lilbke, Schroder, Peptides, H. C. Beyermati, A. van der Linde, W. M. van den Brink, Eds. (North-Holland Publishing Company, Amsterdam. 1967) pp 271-279 Dorman, Markley, J. Med. Chem. 14, 5 (1970) Schrbder ei al. Experientia 27, 764... [Pg.913]

The investigations of Schroder [28] also showed that a non-linear relation may exist between the film thickness d and the concentration c of the coating solution, as can be seen in Fig. 13 for 2 forming solution. This non-linearity comes from an increase in the viscosity t) of the solution with increasing concentration c. In par-... [Pg.124]

TAYLOR, J. L., FRITZEMEIER, K. H., HAUSER, I., KOMBRINK, E., ROHWER, F., SCHRODER, M., STRITTMATTER, G., HAHLBROCK, K., Structural analysis and activation by fungal infection of a gene encoding a pathogenesis-related protein in potato. Mol. Plant Microbe. Interact., 1990, 3,12-11. [Pg.187]


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See also in sourсe #XX -- [ Pg.254 ]




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